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Title: Three-dimensional imaging of cholesterol and sphingolipids within a Madin-Darby canine kidney cell

Journal Article · · Biointerphases
DOI:https://doi.org/10.1116/1.4939681· OSTI ID:1305902
 [1];  [2];  [1]
  1. Univ. of Illinois, Urbana, IL (United States). Dept. of Chemical and Biomolecular Engineering
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Glenn T. Seaborg Institute

Metabolic stable isotope incorporation and secondary ion mass spectrometry(SIMS) depth profiling performed on a Cameca NanoSIMS 50 were used to image the 18O-cholesterol and 15N-sphingolipid distributions within a portion of a Madin-Darby canine kidney (MDCK) cell. Three-dimensional representations of the component-specific isotope distributions show clearly defined regions of 18O-cholesterol and 15N-sphingolipid enrichment that seem to be separate subcellular compartments. Furthermore, the low levels of nitrogen-containing secondary ions detected at the 18O-enriched regions suggest that these 18O-cholesterol-rich structures may be lipiddroplets, which have a core consisting of cholesterol esters and triacylglycerides.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1305902
Alternate ID(s):
OSTI ID: 1421226
Report Number(s):
LLNL-JRNL-680575; BJIOBN
Journal Information:
Biointerphases, Vol. 11, Issue 2; ISSN 1934-8630
Publisher:
AIPCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

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Cited By (2)

Sphingolipid Organization in the Plasma Membrane and the Mechanisms That Influence It journal January 2017
SIMS imaging in neurobiology and cell biology journal January 2019